Maura swims the length of a pool 8 times .The pool is 17.4 meters long. How many meters does Maura swim in all? Please help me now

15 points ! ~ see if you know the answer to both you!

Given right triangle xyz, which correctly describes the locations of the sides in relation to

Adrawer contains 12 identical white socks, 18 identical black socks and 14 identical brown socks. what is the least number of socks you must choose, without looking, to be certain that you have chosen two socks of the same colour?